Adam Equipment MDW Digital Physician Scales MDW300LREVA2 User Manual

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8.0  RS232 COMMUNICATIONS 
    
The Interface parameters are: 
 
Connection details are: 
 
 
8.1  RS-232 connection between the Scale and the Host : 
          DB9 female  RXD   pin 3          
TXD   pin 2         
GND   pin 5         
Note: Pins 1, 4, 6, 7, 8 and 9 are not connected. 
  
The RS232 function will only operate if PH has been  set to 0 or 2. 
   8.2  When Parameter S.F. in section 7 is set to 0 :  
No RS232 function. The scale will not transmit or r eceive any data although the...

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8.3 
When Parameter S.F. in section 7 is set to 1 :  
Continuous output of the current displayed reading  and unit, and no data is received. The 
output format is as below:  < reading, minus, decimal point, weight unit>GR  
Or < reading, minus, decimal point, weight unit >NT 
    8.4  When Parameter S.F. in section 7 is set to 2 :  
Manually outputs displayed data when PRINT is press ed. The output format is as below: 
< reading, minus, decimal point, weight unit>GR  
Or < reading, minus,...

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U1U2: measure units, kg, lb 
8.5.3  Commands and response 
(1) Command: W  (57h 0dh)   
Response: 
①^^^^^^u1u2H1H2H3---over capaci ty 
①______u1u2 H1H2H3 ---under cap acity 
①---------u1u2 H1H2H3---zero-point error 
①< L F > < p > w 1 w 2 w 3 w 4 w 5 w 6 < d p > w 7 u 1 u 2 < C R > < L F > H 1 H 2 H 3 < C R > 
 ---Scale is stable, and the current weight un it is kg or lb. With or without 
decimal point and the position is as per the P9 set ting and current unit.  
 
(2) Command: S  (53h 0dh)...

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Table1: The status bits definition:  
Bit  Byte 1 (H
1)  Byte 2 (H2)  Byte 3 (H3)  
0 0=stable  0= not under 
capacity  01=normal work  
mode 
10= hold work 
mode         
00=not define                 
11= not define  
1= not stable  1= under capacity 
1 
0= not at zero 
point  0= not over 
capacity 
1= at zero point 1= over capacity 
2 always 0  always 0  0= gross weight 1= net weight 
3 
0= eeprom OK  
always 0  always 0 1= eeprom 
error 
4 always 1  always 1  always 1 
5 always 1  always 1...

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9.0  ERROR MESSAGES 
   
1. 0¯ ¯ ¯ ¯ ¯     Zero point is over the setting range 
2. 0_ _ _ _ _      Zero is below the setting range 
3. Ad¯ ¯ ¯¯     ADC is over max. range; 
4. Ad  _ _ _ _      ADC is below min. range; 
5. EEP.Er     There is an error in the EEPROM  
6. CAL.Er      There is an error in calibration 
7.  CAP .--     The capacity will be displayed  
8.  Lo.bAt      The battery voltage or input power is below 5.6V . 
9. FULL     The capacity has been exceeded by the person  
on the...

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WARRANTY INFORMATION    
 
Adam Equipment offers Limited Warranty (Parts and Labour) for the components which fail due 
to defects in materials or workmanship.  Warranty starts from the date of delivery. 
 
During the warranty period, should any repairs be n ecessary, the purchaser must inform their 
supplier, or Adam Equipment Company. The company or  its authorised Technician reserves 
the right to repair or replace the components at any of its workshops depending on the severity 
of the...

© Adam Equipment Company 2014             Page 1    

© Adam Equipment Company 2014      
   
 
 
Manufacturer’s Declaration of Conformity 
 
Adam Equipment Co. 
Maidstone Road, Kingston  Milton Keynes, MK10 0BD  United Kingdom 
 
This product has been manufactured in accordance wi th the harmonised European standards, 
following the provisions of the below stated direct ives: 
 
2004/108/EC, Electro Magnetic Compatibility  
Directive   Standard EN61326-1:2013, Electrical 
Equipment for Measurement, Control and  
Laboratory Use – EMC requirements – Part 1:...

© Adam Equipment Company 2014      
 
 
ADAM EQUIPMENT is an ISO 9001:2008 certified global company with  more than 
40 years experience in the production and sale of e lectronic weighing equipment.  
  
Adam products are predominantly designed for the La boratory, Educational, Health 
and  Fitness,  Retail  and  Industrial  Segments.  The  pr oduct  range  can  be  described 
as follows:    -Analytical and Precision Balances  
-Compact and Portable Balances  
-High Capacity Balances  
-Moisture...